Patent Application
Utility
App. No. 18/472,343
· Confirmation No. 3527
BURIED SHIELD STRUCTURES FOR POWER SEMICONDUCTOR DEVICES INCLUDING SEGMENTED SUPPORT SHIELD STRUCTURES FOR REDUCED ON-RESISTANCE AND RELATED FABRICATION METHODS
Applicant:
Wolfspeed, Inc.
Final Rejection Mailed
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Code | Description | Pages | ||
|---|---|---|---|---|---|
| 2026-07-20 | CTFR |
Final Rejection | 10 | View | |
| 2026-07-20 | 892 |
List of references cited by examiner | 1 | View | |
| 2026-07-20 | SRFW |
Search information including classification, databases and other search related notes | 2 | View | |
| 2026-07-20 | SRNT |
Examiner's search strategy and results | 13 | View | |
| 2026-05-22 | A... |
Amendment/Request for Reconsideration-After Non-Final Rejection | — | View | |
| 2026-05-22 | A... |
Amendment/Request for Reconsideration-After Non-Final Rejection | 1 | View | |
| 2026-05-22 | CLM |
Claims | 7 | View | |
| 2026-05-22 | REM |
Applicant Arguments/Remarks Made in an Amendment | 6 | View | |
| 2026-05-22 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2026-05-22 | N417.PYMT |
Electronic Fee Payment | 2 | View | |
| 2026-05-22 | WFEE |
Fee Worksheet (SB06) | 1 | View | |
| 2026-02-23 | CTNF |
Non-Final Rejection | 10 | View | |
| 2026-02-23 | 892 |
List of references cited by examiner | 1 | View | |
| 2026-02-23 | SRFW |
Search information including classification, databases and other search related notes | 2 | View | |
| 2026-02-23 | 1449 |
List of References cited by applicant and considered by examiner | 4 | View | |
| 2026-02-23 | SRNT |
Examiner's search strategy and results | 10 | View | |
| 2026-02-23 | 1449 |
List of References cited by applicant and considered by examiner | 4 | View | |
| 2026-02-23 | 1449 |
List of References cited by applicant and considered by examiner | 5 | View | |
| 2025-08-21 | IDS |
Information Disclosure Statement (IDS) Form (SB08) | 5 | View | |
| 2025-08-21 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2024-07-15 | NTC.PUB |
Notice of Publication | 1 | View | |
| 2024-06-13 | REF.OTHER |
Other reference-Patent/Application/Search Documents | 25 | View | |
| 2024-06-13 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2024-06-13 | FOR |
Foreign Reference | 21 | View | |
| 2024-06-13 | IDS |
Information Disclosure Statement (IDS) Form (SB08) | 4 | View | |
| 2023-10-04 | WFEE |
Fee Worksheet (SB06) | 1 | View | |
| 2023-10-04 | APP.FILE.REC |
Filing Receipt | 4 | View | |
| 2023-10-04 | WELCOME.LET |
Welcome Letter from USPTO Director and Deputy Director | 1 | View | |
| 2023-10-03 | PA.. |
Power of Attorney | — | View | |
| 2023-10-03 | PA.. |
Power of Attorney | 1 | View | |
| 2023-10-03 | R3.73 |
Assignee showing of ownership per 37 CFR 3.73 | 2 | View | |
| 2023-10-03 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2023-09-27 | N417 |
Electronic Filing System Acknowledgment Receipt | 2 | View | |
| 2023-09-27 | OATH |
Oath or Declaration filed | 4 | View | |
| 2023-09-22 | SPEC |
Specification | — | View | |
| 2023-09-22 | A.PE |
Preliminary Amendment | — | View | |
| 2023-09-22 | IDS |
Information Disclosure Statement (IDS) Form (SB08) | 4 | View | |
| 2023-09-22 | ADS |
Application Data Sheet | 9 | View | |
| 2023-09-22 | A.PE |
Preliminary Amendment | 1 | View | |
| 2023-09-22 | CLM |
Claims | 5 | View | |
| 2023-09-22 | REM |
Applicant Arguments/Remarks Made in an Amendment | 1 | View | |
| 2023-09-22 | DRW |
Drawings-only black and white line drawings | 35 | View | |
| 2023-09-22 | N417.PYMT |
Electronic Fee Payment | 2 | View | |
| 2023-09-22 | TRNA |
Transmittal of New Application | 1 | View | |
| 2023-09-22 | SPEC |
Specification | 40 | View | |
| 2023-09-22 | CLM |
Claims | 6 | View | |
| 2023-09-22 | ABST |
Abstract | 1 | View | |
| 2023-09-22 | N417 |
Electronic Filing System Acknowledgment Receipt | 4 | View | |
| 2023-09-22 | WFEE |
Fee Worksheet (SB06) | 1 | View |
Inventors
Madankumar Sampath
Durham, NC
Naeem Islam
Morrisville, NC
Woongsun Kim
Cary, NC
Sei-Hyung Ryu
Cary, NC
Attorneys & Agents of Record
Classification
USPC
257/330
H10D62/107
H10D30/668
H10D84/0126
H10D84/839
H10D64/117
H10D30/0291
H10D62/127
H10D62/393
H10D30/0297
Prosecution
- Examiner
- RAHMAN, MOHAMMAD A
- Art Unit
- 2898
- Customer No.
- 65106
- Docket No.
- 5308.3304IP
- Confirmation No.
- 3527
Publication
- Pub. No.
- US20240234567A1
- Pub. Date
- 2024-07-11
from
WOLFSPEED, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2026-03-26
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL AT REEL/FRAME NO. 69180/0437
Recorded 2025-09-30
from
WOLFSPEED, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2025-09-30
from
WOLFSPEED, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2025-09-30
from
WOLFSPEED, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2025-09-30
from
WOLFSPEED, INC.
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY
Recorded 2025-09-30
from
WOLFSPEED, INC.
SECURITY INTEREST
Recorded 2024-10-17
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded 2023-09-27
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Quick Facts
- App. No.
- 18/472,343
- Filed
- 2023-09-22
- Pub. No.
- US20240234567A1
- Examiner
- RAHMAN, MOHAMMAD A
- Art Unit
- 2898
External Links